It has been shown that the concept of "keyholes" in MIMO channels could be responsible for a reduced transmit/receive diversity performance, and therefore a reduction of capacity with respect the maximum available radio link capacity. In the present work, we further analyse this effect in terms of coupling between an input wave impinging on the keyhole, and several output waves due to diffracti...

This paper describes the cooperation of four European Universities aiming at attracting more students to European master studies in Language and Communication Technologies. The cooperation has been formally approved within the framework of the new European program “Erasmus Mundus” as a Specific Support Action in 2004. The consortium also aims at creating a sound basis for a joint master program...

Cooperation is a key success factor for small and medium enterprises (SME) in most of the countries. At the beginning of the 2000s, a large European study has analysed the extent and the effect of cooperation between SMEs. However, how successful have been cooperation of SMEs during the economic crisis of the last years? Has the cooperation rate decreased or increased? What are the drivers and ...